Indicators for Climate Change Impacts - Lakes in cold ecoregions, Shallow lakes
TOC run-off patterns
| Stressor type | Temperature |
|---|---|
| Responding parameter group | Physico-chemical parameters |
| Responding parameter | TOC run-off patterns |
Response description
Warmer winters produce higher levels of run-off TOC release with subsequently increasing TOC water concentrations.
Secondary effects
Changes in water colour might cause changes in light conditions which will have an effect on phytoplankton growth and oxygen concentrations in the profundal.
Specification of relevant ecosystem type
Relevant for all small lakes in cold ecoregions.
Relevant ecoregion(s) according to Illies
Borealic Uplands (20), Tundra (21), Fennoscandian Shield (22), Taiga (23)
Suggested indicator
TOC levels and/or absorbance (water colour).
Justification of indicator
Water TOC concentrations reflect changes in run-off and input of allochtonous material.
Reference(s)
Wright, R.F. and Jenkins, A. (2001): Climate change as a confounding factor in reversibility of acidification: RAIN and CLIMEX projects. Hydrology and Earth System Sciences 5(3): 477-486.
